Add helper to know if we currently are in "debug" mode

Can be used to enable more features / debugging tools throughout the application.

application/utils.inc.php

@@ -2119,6 +2119,18 @@ class utils
 		return ITOP_REVISION  === 'svn';
 	}
 
+	/**
+	 * Check if debug is enabled in the current environment.
+	 * Currently just checking if the "debug=true" parameter is in the URL, but could be more complex.
+	 *
+	 * @return bool
+	 * @since 2.8.0
+	 */
+	public static function IsDebugEnabled()
+	{
+		return utils::ReadParam('debug') === 'true';
+	}
+
 	/**
 	 * @see https://php.net/manual/en/function.finfo-file.php
 	 *